Toluene → Diethyl 1,4-dihydro-4-(2-trifluoromethylphenyl)-2,6-dimethyl-1-(2-[N,N-bis-(methoxyethyl)]aminoethyl)-3,5-pyridine dicarboxylate

HRID 463533

Reaktionsgleichung

Reaktionsgleichung von HRID 463533
[H-].[Na+].[F:3][C:4]([F:30])([F:29])[C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][C:6]=1[CH:11]1[C:16]([C:17]([O:19][CH2:20][CH3:21])=[O:18])=[C:15]([CH3:22])[NH:14][C:13]([CH3:23])=[C:12]1[C:24]([O:26][CH2:27][CH3:28])=[O:25].C1(C)C=CC=CC=1.Cl[CH2:39][CH2:40][N:41]([CH2:46][CH2:47][O:48][CH3:49])[CH2:42][CH2:43][O:44][CH3:45]>CN(C=O)C>[F:30][C:4]([F:29])([F:3])[C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][C:6]=1[CH:11]1[C:12]([C:24]([O:26][CH2:27][CH3:28])=[O:25])=[C:13]([CH3:23])[N:14]([CH2:39][CH2:40][N:41]([CH2:46][CH2:47][O:48][CH3:49])[CH2:42][CH2:43][O:44][CH3:45])[C:15]([CH3:22])=[C:16]1[C:17]([O:19][CH2:20][CH3:21])=[O:18]

Komponenten

6

Edukt 4

HCID 1140TolueneHCID 24758Sodium hydrideHCID 1680891,4-Dihydro-2,6-dimethyl-4-(2-(trifluoromethyl)phenyl)-3,5-pyridinedicarboxylic acid diethyl esterHCID 156595712-chloro-N,N-bis(methoxyethyl)ethylamine

Produkt 1

HCID 20281063Diethyl 1,4-dihydro-4-(2-trifluoromethylphenyl)-2,6-dimethyl-1-(2-[N,N-bis-(methoxyethyl)]aminoethyl)-3,5-pyridine dicarboxylate

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
50 °C

Versuchsvorschrift

To a suspension of sodium hydride (5.2 gms.; 0.11 mole) (50% suspension mineral oil) in 100 ml of dry distilled DMF is added a solution of diethyl 1,4-dihydro-4-(2-trifluoromethylphenyl)-2,6-dimethyl-3,5-pyridine dicarboxylate (39.7 gms.; 0.1 mole) in 150 ml of DMF. After the gassing has ceased, the reaction mixture is heated on a water bath for 1 hour and then is cooled to 50° C. and to the hot solution is added a toluene solution of 2-chloro-N,N-bis(methoxyethyl)ethylamine. The reaction mixture is heated at 100°-110° C. for a period of 8 hours and then cooled. The unreacted NaH and NaCl is filtered off and the solvent removed from the filtrate. The residue is extracted with hot hexane which, on cooling, affords the desired product. Recrystallization from heptane yields the pure product.

Aufarbeitung

  1. customof dry
  2. distillationdistilled DMF
  3. temperaturethe reaction mixture is heated on a water bath for 1 hour
  4. temperatureThe reaction mixture is heated at 100°-110° C. for a period of 8 hours
  5. temperaturecooled
  6. filtrationThe unreacted NaH and NaCl is filtered off
  7. customthe solvent removed from the filtrate
  8. extractionThe residue is extracted with hot hexane which
  9. temperatureon cooling

Quellen und Nachweise

ORD-Eintrag
ord-19e44a28db16498895aff6545ae620b0
Quelldatensatz
uspto-grants-1985_05
Patentnummer
US04520131

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